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Figure 4 Delivery Mode Determines the Extent of Extracardiac Transgene Expression

Immunohistochemical sections of lung stained for ß-galactosidase 2 weeks after direct intracoronary (A) and recirculating (B) delivery of adenovirus ß-galactosidase (AdLacZ). Immunohistochemical sections of liver stained for ß-galactosidase after direct intracoronary (C) and recirculating (D) delivery of AdLacZ.